/// <summary>
///
/// </summary>
/// <param name="e"></param>
protected override void OnPaintBackground(PaintEventArgs e)
{
if (BackColor == Color.Transparent || BackColor.A < 255)
{
if (Parent is ISupportsTransparentChildRendering)
{
((ISupportsTransparentChildRendering)Parent).TransparentChild = this;
}
int hScrollHeight = (this.HScroll ? SystemInformation.HorizontalScrollBarHeight : 0);
int vScrollWidth = (this.VScroll ? SystemInformation.VerticalScrollBarWidth : 0);
int borderWidth = ((this.Width - this.ClientSize.Width) - vScrollWidth) / 2;
int titleBarHeight = this.Height - this.ClientSize.Height - (2 * borderWidth) - hScrollHeight;
System.Drawing.Drawing2D.GraphicsContainer g = e.Graphics.BeginContainer();
Rectangle translateRect = this.Bounds;
e.Graphics.TranslateTransform(-(Left + borderWidth), -(Top + titleBarHeight + borderWidth));
PaintEventArgs pe = new PaintEventArgs(e.Graphics, translateRect);
this.InvokePaintBackground(Parent, pe);
this.InvokePaint(Parent, pe);
e.Graphics.ResetTransform();
e.Graphics.EndContainer(g);
pe.Dispose();
if (Parent is ISupportsTransparentChildRendering)
{
((ISupportsTransparentChildRendering)Parent).TransparentChild = null;
}
}
ControlRenderer.PaintBackgoundColorAndImage(this, e.Graphics, true, DisplayRectangle);
if (TransparentChild != null && DesignMode)
{
ControlRenderer.RenderOwnerDrawnControlsOfParent(e.Graphics, TransparentChild);
}
}
/// <summary>paint the backround button</summary>
/// <param name="mgButton"></param>
/// <param name="e"></param>
private static void PaintBackground(Control buttonBase, PaintEventArgs e)
{
Rectangle displayRect = buttonBase.ClientRectangle;
// when button is image , the display rect is on all the button, else the display rect is on the tect rect
if (!ControlUtils.IsImageButton(buttonBase))
{
displayRect = GetTextRect(buttonBase);
}
ControlRenderer.PaintBackgoundColorAndImage(buttonBase, e.Graphics, false, displayRect);
#if PocketPC
// Draw the border for the button-appearance checkbox
if (buttonBase is MgCheckBox)
{
Rectangle rect = buttonBase.ClientRectangle;
rect.Inflate(-1, -1);
Color fgColor = buttonBase.ForeColor;
ControlStyle borderStyle = (((MgCheckBox)buttonBase).CheckState == CheckState.Unchecked) ? ControlStyle.ThreeD : ControlStyle.TwoD;
BorderRenderer.PaintBorder(e.Graphics, rect, fgColor, borderStyle, false);
}
#endif
}
